In the treatment of hypothyroidism in children:
- A. Levodopa is the treatment of choice
- B. Levothyroxine should be used
- C. Triiodothyronine is the first line treatment
- D. Carbimazole is indicated
Correct Answer: B
Rationale: Levothyroxine is the treatment of choice for hypothyroidism, as it replaces the deficient thyroid hormone and helps normalize metabolic functions.
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Which is best described as the inability of the heart to pump an adequate amount of blood to the systemic circulation at normal filling pressures?
- A. Pulmonary congestion
- B. Congenital heart defect
- C. Heart failure
- D. Systemic venous congestion
Correct Answer: C
Rationale: The definition of heart failure is the inability of the heart to pump an adequate amount of blood to the systemic circulation at normal filling pressures to meet the body’s metabolic demands. Pulmonary congestion is an excessive accumulation of fluid in the lungs. Congenital heart defect is a malformation of the heart present at birth. Systemic venous congestion is an excessive accumulation of fluid in the systemic vasculature.
Features differentiating renal tubular acidosis type II from type I include:
- A. Increased anion gap
- B. Nephrocalcinosis
- C. Urinary pH can be lowered < 5.5 in ammonium chloride loading test in type I
- D. Aminoaciduria
Correct Answer: C
Rationale: In type I renal tubular acidosis, urinary pH can be lowered below 5.5 during an ammonium chloride loading test, unlike in type II.
What are the SIX anatomic features associated with AVSD?
- A. AV-valve leaflets at the same level
- B. Absent AV septum
- C. Unwedged aortic valve
- D. Gooseneck elongated LVOT
Correct Answer: D
Rationale: AVSD involves multiple anatomic features that lead to a characteristic appearance and functional issues in the heart.
A child has an elevated antistreptolysin O (ASO) titer. Which combination of symptoms, in conjunction with this finding, would confirm a diagnosis of rheumatic fever?
- A. Subcutaneous nodules and fever
- B. Painful, tender joints, and carditis
- C. Erythema marginatum and arthralgia
- D. Chorea and elevated sedimentation rate
Correct Answer: B
Rationale: The presence of two major Jones criteria would indicate a high probability of rheumatic fever.
Which intervention should the nurse plan to decrease cardiac demands in an infant with congestive heart disease (CHD)?
- A. Organize nursing activities to allow for uninterrupted sleep.
- B. Allow the infant to sleep through feedings during the night.
- C. Wait for the infant to cry to show definite signs of hunger.
- D. Discourage parents from rocking the infant.
Correct Answer: A
Rationale: The infant requires rest and conservation of energy for feeding. Every effort is made to organize nursing activities to allow for uninterrupted periods of sleep. Whenever possible, parents are encouraged to stay with their infant to provide the holding, rocking, and cuddling that help children sleep more soundly. To minimize disturbing the infant, changing bed linens and complete bathing are done only when necessary. Feeding is planned to accommodate the infant’s sleep and wake patterns. The child is fed at the first sign of hunger, such as when sucking on fists, rather than waiting until he or she cries for a bottle because the stress of crying exhausts the limited energy supply. Because infants with CHD tire easily and may sleep through feedings, smaller feedings every 3 hours may be helpful.